Buffing-machine.



A. L. KRAUS. BUFFING MACHINE APPLICATION FILED our. 26. 1915.

Patented Oct. 10, 1916.

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A. L. KRAUS.

BUFFING MACHINE.

APPLICATION FILED OCT. 26. His.

1,200,624. Patented Oct. 10,1916.

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UNITED STATES PATENT OFFICE.

ALBERT L. KRAUS, OF PEABODY, MASSACHUSETTS, ASSIGNOR T0 ALBERT L. KRAUS, OF

PEABODY, MASSACHUSETTS, AND EDWARD L. MILLETT, OF BEVERLY, MASSACHU- SETTS, CQPARTNERS DOING BUSINESS UNDER THE FIRM-NAME AND STYLE 0F KRAUS MILLETT & COMPANY, OF PEABODY, MASSACHUSETTS.

BUFFING-MACHINE.

Specification of Letters Patent.

Patented Oct. 10,- 1916.

Application filed Qctober 26, 1915. Serial No. 58,029.

To all whom it may concern:

Be it known that I, ALBERT L. KRAUs, a citizen of the United States, and resident of Peabody, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Buffing-Machines, of which the following is a specification.

My invention relates to buffing machines, and more particularly to the wheels of such machines of the type which carry a removable buffing strip. In the wheels of this type heretofore provided, with which I am familiar, it is necessary to remove a part or parts of the wheel in order to take off the wornout strip and to replace such part or parts after the new strip has been placed in position. This work of changing or renewing the bufling strip is often laborious, consuming considerable time, and it is one of the objects of this invention to provide a wheel wherein the butting strip can be readily removed and replaced Without removal or replacement of any part or parts of the wheel.

A further object of my invention is to provide means for moistening the butting strip with a solvent of the finish of the article being operated upon and maintaining the strip in a moistened condition during the operation of the machine, thereby lessening or preventing damage to the finish of the zgrticle by reason of the abrasive character of the butting material.

Referring to the drawings which illustrate an embodiment of my invention,Figure 1 is a front elevation of a butting ma chine embodying my invention; Fig. 2 is an end view thereof; Fig. 3 is a side view on enlarged scale of my improved wheel; Fig. it is a vertical central section through the wheel shown in Fig. 3; and Fig. 5 is a section on line 55, Fig. 3.

My improved wheel consists of a felly F made in two sections hinged at 1, and has a hub 2 provided with a spoke 3 preferably formed integral therewith and with one section of the felly F as shown. The said hub is further provided opposite said spoke 3 with a feather & adapted to fit within a recess 5 in the spoke 6. The said spoke 6, which is formed integral with the other section of the felly F, is provided with forks 7 extending on oppo ite sides of the hub 2, and to the ends of sai forks there is secured in any suitable manner, as by screws 8, a cap 9 having a slot 10 (Fig. 5) through which the spoke 3 passes. Onopposite sides of said slot 10 are sockets 11 adapted to receive springs 12. One end of each of said springs engages the bottom of its socket 11 and its opposite end engages the hub 2 so that said springs are held under compression between said cap 9 and said hub.

The rim 13 (Fig. 4) is preferably formed integrally with the felly F, and the rim lt is detachably secured thereto .as by the screw 15. Each of said rimshas a circumferential rib 16 adapted to fit within grooves provided for that purpose in the strip support 17, which is preferably made of felt or other yielding material, and is removably secured between said rims 13 and 1%. Mounted in the free end of one section of said felly is a pin 18 adapted to pass through the end of the bufling strip 19 into a socket 20 in the other section of said felly when the wheel is in normal closed position shown in the drawings.

The springs 12 exerting their pressure against the hub 2 and the cap 9, which, is fast to the spoke 6, hold the two sections of the wheel yieldingly yet firmly together. When it becomes necessary to replace the strip 19 the two sections are swung apart on their hinge 1 until the pin 18 is out of its socket 20, and while the sections are thus held in open position, the old strip 19 can be readily removed and a new strip substitutcd therefor. The opening movement of the wheel sections compresses or closes the springs 12, so that when'the new strip has been placed in position and the sections are released, the springs are free to expand and return the sections to normal closed position with the bufling strip 19 firmly gripped between their free ends.

Mounted on the frame of the bufling machine and preferably below the bufling wheel, is a bracket (Fig. 2) having a horizontal arm 21 and a vertical arm 22, to which is adjustably secured, as by bolts 23, an upright 24 on which is mounted a reservoir or receptacle 25. Preferably the said arm 21 is adjustably secured to a supporting member 21 of the frame, as-by a set screw, so that said reservoir 25 is adjustable both vertically and heri-zontally with relation to the bufling wheel. The said reservoir 25 has a cock 26 provided with a dropper 27, and is further provided with a support 28 having vertical walls 29 between which is mounted a trough 30 having apertures 31 at or near its bottom. Below said trough 30 and resting on said support 28 is a moistening pad 82, of felt or the like, held in engagement with the bufiing strip 19 by a spring 33 fast on said trough. Preferably a screen 3% is mounted on the bottom of the reservoir 25 and normally held in engagement with the buffing wheel by a spring 35 adjustably secured to the upright 24.

When the work being operated upon, as for example, patent leather, has a finish likely to be scratched or otherwise damaged by the abrasive character of the buiiing material, the reservoir 25 is filled with any of the well-known liquid solvents of patent leather finish, and such solvent drops from the dropper 27 into the trough 30, moistening the pad 32 which is yieldingly held in engagement with the bufling'strip 19, so that said strip becomes moistened with said solvent and is retained in this condition during the buffing operation. The moistened strip softens the finishing of the leather so that the polishing is accomplished while the finish is relatively soft, and thus the likelihood of scratching is lessened if not indeed wholly eliminated.

I claim:

1. In apparatus for buffing and polishing a coated surface, the combination with a buffing wheel, of means to apply thereto a solvent of the coating to be acted upon comprising a reservoir for said solvent, and a moistener in permanent yielding engagement wlth said wheel.

2. In apparatus for buffing and polishlng a coated surface, the combination with a bufling wheel, of means to apply thereto a solvent of the coating to be acted upon comprising a reservoir for said solvent having a dropper and a moistener located below said dropper and in permanent yielding engagement with said wheel.

3. A bufiing machine comprising a bufling wheel, and means to moisten the periphery thereof comprising a reservoir having a dropper, a trough located below said dropper and having an aperture, and a pad below said trough adapted yieldingly to engage said periphery.

In apparatus for buffing and polishing a coated surface, the combination with a bufling wheel, of means to apply thereto a solvent of the coating to be acted upon, comprising a reservoir adjustably mounted with relation to said wheel, and having a dropper, a perforated receptacle located below said dropper, a moistening pad located below said receptacle and yieldingly held in engagement with said wheel.

5. In apparatus for bufling and polishing a coated surface, the combination with a bufiing wheel, of means to apply thereto a solvent of the coating to be acted upon comprising a reservoir adjustably mounted with relation to said wheel and having a dropper, a perforated trough located below said dropper, a support for said trough fast on said reservoir, a moistening pad located below said trough, and a spring fast on said trough and engaging said pad.

Signed by me at Peabody, Massachusetts, this 23rd day of October, 1915.

ALBERT L. KRAUS. lVitnesses:

JoI-IN A. TEAGUE, MARY L. lVooDs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

